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2017-08-26 06:36:19 -0500 marked best answer Problem configuration with roscore?

Hi, I recently install Ros Kinetic, using the tutorials, but I've seen some troubles while I launch the roscore, because it only launch when I have internet connection.

:~$ roscore
... logging to /home/luigi/.ros/log/8a34264e-89af-11e7-b0b2-3bf20ac5beb2/roslaunch-ubuntu-4007.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

Unable to contact my own server at [http://ubuntu:36413/].
This usually means that the network is not configured properly.

A common cause is that the machine cannot ping itself.  Please check
for errors by running:

    ping ubuntu

For more tips, please see

    http://www.ros.org/wiki/ROS/NetworkSetup

The traceback for the exception was written to the log file

**But ,when I get internet conection, there's no problem

:~$ roscore
... logging to /home/luigi/.ros/log/5375e854-89af-11e7-b0b2-3bf20ac5beb2/roslaunch-ubuntu-3860.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://ubuntu:39853/
ros_comm version 1.12.7


SUMMARY
========

PARAMETERS
 * /rosdistro: kinetic
 * /rosversion: 1.12.7

NODES

auto-starting new master
process[master]: started with pid [3871]
ROS_MASTER_URI=http://ubuntu:11311/

setting /run_id to 5375e854-89af-11e7-b0b2-3bf20ac5beb2
process[rosout-1]: started with pid [3884]
started core service [/rosout]
2017-08-26 06:36:18 -0500 received badge  Scholar (source)
2017-08-26 06:35:41 -0500 commented answer Problem configuration with roscore?

Thanks Ed !!! Apparently the name of my computer in the hosts file was incorrect, I fixed it and it seems that the rosco

2017-08-26 06:17:41 -0500 commented question Problem configuration with roscore?

thanks, I mean wifi connection.

2017-08-26 06:17:01 -0500 commented question Problem configuration with roscore?

:~$ printenv | grep ROS ROS_ROOT=/opt/ros/kinetic/share/ros ROS_PACKAGE_PATH=/home/luigi/RoboticsCourses/catkin_ws/src:/

2017-08-26 06:16:10 -0500 commented question Problem configuration with roscore?

:~$ printenv | grep ROS ROS_ROOT=/opt/ros/kinetic/share/ros ROS_PACKAGE_PATH=/home/luigi/RoboticsCourses

2017-08-26 06:15:14 -0500 commented question Problem configuration with roscore?

:~$ printenv | grep ROS ROS_ROOT=/opt/ros/kinetic/share/ros ROS_PACKAGE_PATH=/home/luigi/RoboticsCourses/catkin_

2017-08-26 06:14:57 -0500 commented question Problem configuration with roscore?

:~$ printenv | grep ROS ROS_ROOT=/opt/ros/kinetic/share/ros ROS_PACKAGE_PATH=/home/luigi/RoboticsCourses/catkin_ws/src:/

2017-08-25 14:28:32 -0500 asked a question Problem configuration with roscore?

Problem configuration with roscore? Hi, I recently install Ros Kinetic, using the tutorials, but I've seen some troubles